UC3842BP-S08-R datasheet(6/11 Pages) UTC

部件名	UC3842BP-S08-R

功能描述	HIGH PERFORMANCE CURRENT MODE CONTROLLERS

PDF	11 Pages

Scroll/Zoom	100%

制造商	UTC [Unisonic Technologies]

网页	http://www.utc-ic.com

标志

6 / 11 page

UC3842B/3843B

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

6 of 11

www.unisonic.com.tw

QW-R103-012.F



TYPICAL APPLICATION CIRCUIT

Open Loop Test Circuit

All of the parameters are not all tested in production, although been guaranteed. The timing and bypass capacitors

must be connected to Pin 5 in a single point ground very closely. To sample the oscillator waveform, the transistor

and 5kΩ potentiometer are used, and also can apply an adjustable ramp to ISENSE Pin.

UTC

UC3842B/3843B

COMP

VFB

ISENSE

RT/CT

GND

OUTPUT

VREF

E/A

ADJUST

4.7K

ISENSE

ADJUST

4.7K

2222

100K

0.1

OUTPUT

1K/1W

VREF

Under Voltage Lockout

Under-Voltage Lock-Out: the output driver is biased to a high impedance state. To prevent activating the power

switch with output leakage current, Pin 6 should be shunted to ground with a bleeder resistor.

Error Amp Configuration

UC3842BP-S08-R 数据表(PDF) 6 Page - Unisonic Technologies

UC3842BP-S08-R 数据表(HTML) 6 Page - Unisonic Technologies

Html Pages

1 2 3 4 5 6 7 8 9 10 11

数据表下载